Add 7/63 and 20/30
7/63 + 20/30 is 7/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 30 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
7/63 = 7 × 10/63 × 10 = 70/630 - Likewise, for the 2nd fraction, since 30 × 21 = 630,
20/30 = 20 × 21/30 × 21 = 420/630 - Add the two like fractions:
70/630 + 420/630 = 70 + 420/630 = 490/630 - 490/630 simplified gives 7/9
- So, 7/63 + 20/30 = 7/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/63+20/30 7/63+40/30 7/63+20/60 21/63+20/30 7/63+60/30 7/63+20/90 35/63+20/30 49/63+20/30